STRI Loc. 290602 - ParĂ¡uachon [upper Jimol Fm] (Miocene of Colombia)

Also known as STRI Sample 34797, 34798, 37836, 37939, 37940

Where: La Guajira, Colombia (11.9° N, 71.4° W: paleocoordinates 11.2° N, 68.1° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: upper Jimol Member (Jimol Formation), Burdigalian (20.4 - 16.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Jimol Formation, which conformably overlies the Uipta Formation (early Miocene) and is conformably overlain by the Castilletes Formation. This area and nearby collections have been previously mapped as Castilletes Formaton (late Pliocene-early Pleistocene). AGE: Burdigalian, on the basis of macrofaunal composition; direct age established by extrapolation of Sr-isotope dating by enterer. STRATIGRAPHIC POSITION: From the upper section of Jimol Formation; same horizon as STRI Loc. 290376; from 49 m below Jimol/Castilletes contact.

• bed-level stratigraphic resolution

Environment/lithology: lagoonal; unlithified, shelly/skeletal siltstone

• ENVIRONMENT: Siliciclastic, shallow subtidal (0-30 m).
• SPECIFIC LITHOLOGY: Unconsolidated shell bed, silty matrix. LITHIFICATION: Unlithified, as determined in the field and based on museum-reposited specimens.

Size classes: macrofossils, mesofossils

Preservation: original aragonite, original calcite

Collected by Hendy in 2013

Collection methods: surface (float), surface (in situ),

• COLLECTOR: A. Hendy, 01/16/2013. REPOSITORY: Presently reposited at FLMNH, Gainesville.

Primary reference: A. J. W. Hendy, D. S. Jones, F. Moreno, V. Zapata, and C. Jaramillo. 2015. Neogene molluscs, shallow marine paleoenvironments, and chronostratigraphy of the Guajira Peninsula, Colombia. Swiss Journal of Palaeontology 134(1):45-75 [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 161622: authorized by Austin Hendy, entered by Austin Hendy on 08.09.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for molluscs and arthropods. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature, and species-resolution identifications.
Chondrichthyes
 Euselachii -
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758 tusk shell
Gastropoda
 Cerithioidea - Potamididae
Potamides suprasulcatus Gabb 1873 horn snail
 Cerithioidea - Thiaridae
Aylacostoma sp. Spix and von Wagner 1827 snail
 Cerithioidea - Turritellidae
Turritella matarucana Hodson 1926 turret shell
Turritella cocoditana Hodson 1926 turret shell
 Sorbeoconcha - Naticidae
 Sorbeoconcha - Cypraeidae
Muracypraea aff. hyaena Schilder 1939 cowry
 Neogastropoda - Costellariidae
Knefastia limonensis Olsson 1922 ribbed mitre
 Neogastropoda - Cancellariidae
Bivetiella gabbiana Pilsbry and Johnson 1917 snail
 Neogastropoda - Buccinidae
 Neogastropoda - Muricidae
Eupleura kugleri Jung 1965 murex snail
 Neogastropoda - Cystiscidae
Persicula venezuelana Hodson et al. 1927 snail
 Neogastropoda - Conidae
Conus talis Jung 1965 cone shell
 Neogastropoda - Turridae
Polystira sp. Woodring 1928 turrid
Bivalvia
 Pholadida - Corbulidae
Caryocorbula fortis Jung 1965 clam
 Cardiida - Chamidae
Chama berjadinensis Hodson 1927 jewel box
 Arcida - Arcidae
Anadara (Rasia) cornellana Hodson et al. 1927 ark